Patterns of Recurrence of Phonotraumatic Vocal Fold Lesions Suggest Distinct Mechanisms of Injury

Mark Lee, Ted Mau, Lucian Sulica

Research output: Contribution to journalArticlepeer-review

Abstract

Objectives/Hypothesis: To examine patterns of recurrence of benign phonotraumatic vocal fold lesions over time for insights into pathophysiology. Study Design: Case series with mathematical modeling. Methods: Medical records and stroboscopic exams of adults who underwent microlaryngoscopic resection of phonotraumatic vocal fold lesions over a 13-year period were reviewed for time to recurrence after surgery. Uniform and log-normal probability distributions were fitted to the time to recurrence curves for vocal fold polyps, midfold masses, and pseudocysts. Model fits were compared using the Akaike information criterion corrected, a standard measure of the goodness of fit. Stochastic simulations were used to verify that the mechanistic hypotheses were concordant with the selected probability distributions and empiric data. Results: Of 567 patients who underwent microlaryngoscopic resection, 65 had a recurrence (16 polyps, 14 midfold masses, and 35 pseudocysts). Midfold mass and pseudocyst recurrences were predominantly seen in younger women. Polyps were best fit by a uniform distribution rather than log-normal, whereas midfold masses and pseudocysts were better fit by log-normal rather than uniform. Stochastic simulations suggest that polyps recur sporadically according to a paroxysmal-developmental model, whereas midfold mass and pseudocyst recurrences follow a force-multiplication, damage-accumulation process. Conclusions: Vocal fold polyps are acute lesions evenly distributed by age and gender that recur uniformly over time, suggesting they arise from sudden tissue reactions to phonotraumatic stress. Pseudocysts and midfold fibrous masses are chronic lesions predominantly found in young women that recur with log-normal distribution over time, suggesting gradual damage accumulation in larynges predisposed to enhanced phonotrauma. Level of Evidence: 4 Laryngoscope, 2021.

Original languageEnglish (US)
JournalLaryngoscope
DOIs
StateAccepted/In press - 2021

Keywords

  • pathophysiology
  • Phonotraumatic vocal fold lesions
  • recurrence
  • stochastic modeling
  • vocal fold nodules
  • vocal fold polyps
  • vocal fold pseudocysts

ASJC Scopus subject areas

  • Otorhinolaryngology

Fingerprint

Dive into the research topics of 'Patterns of Recurrence of Phonotraumatic Vocal Fold Lesions Suggest Distinct Mechanisms of Injury'. Together they form a unique fingerprint.

Cite this